德爾福-Indy TIdHttp.Get具有較大的URL長度

Question

我想使用Indy 10的GET方法，但是，我的URL長度大於255個字符。 而GET方法只接受「字符串」參數。

body := httpCom.Get('..........wide string.........') 

德爾福的編譯器給我的錯誤：

"String literals may have at most 255 elements"

是否有任何解決方案或其他第三方組件來解決這個問題？

Answer 1

那沒有string類型，但IDE的問題，你可以像這樣寫

Const 
    C_URL = 'A long text with 255 Characters ....to be contionued ...' 
      +'more content....to be contionued ... ' 
      +'more more content....to be contionued ... ' 
      +'enough content'; 
begin 
    IDHTTP1.Get(C_URL); 
end; 

或

IDHTTP1.Get('A long text with 255 Characters ....to be contionued ...' 
      +'more content....to be contionued ... ' 
      +'more more content....to be contionued ... ' 
      +'enough content'); 

Answer 2

TIdHTTP對URL長度沒有任何限制，更不用說255個字符的限制。然而，HTTP服務器可能會給其結束了這樣的限制，如果確實如此，則請求將失敗與HTTP 414 Request-URI Too Long錯誤代碼，每RFC 2616 Section 10.4.15：

10.4.15 414 Request-URI Too Long

The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret. This rare condition is only likely to occur when a client has improperly converted a POST request to a GET request with long query information, when the client has descended into a URI "black hole" of redirection (e.g., a redirected URI prefix that points to a suffix of itself), or when the server is under attack by a client attempting to exploit security holes present in some servers using fixed-length buffers for reading or manipulating the Request-URI.